A fitting used with a union nut and thread piece to form a union.
NSN 5895-01-442-7274
NSN 6105-01-246-0008
NSN 6610-00-227-8846
NSN 5910-01-431-9072
NSN 5965-01-320-0260
NSN 5975-01-023-1977
NSN 5990-01-257-2476
NSN 4140-01-394-5655
NSN 5855-01-252-5424
NSN 5930-01-215-4913
NSN 5855-01-359-5727
NSN 5925-00-455-8584